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Assertion (A) : Ozone is destroyed by so...

Assertion (A) : Ozone is destroyed by solar radiation in upper streatosphere.
Reason (R) : Thinning of the ozone layer allows excessive UV radiations to reach the surface of earth. a)Both A and R are correct and R is the correct explanation of A. b).Both A and R are correct but R is not the correct explanation of A. c)Both A and R are not correct. d)A is not correct but R is correct.

A

Both A and R are correct and R is the correct explanation of A

B

Both A and R are correct and R is not the correct explanation of A

C

Both A and R are not correct

D

A is not correct but R is correct

Text Solution

Verified by Experts

The correct Answer is:
D
Assertion is not correct but reason is correct.
Ozone layer is found in the stratosphere. The depletion of ozone layer (creation of ozone hole) is taking place due to reaction with NO (produced from natural sources or human activity or in the exhaust gases of engines of supersonic planes) or by reaction with chlorofluorocarbons (CFC's) called freons (produced from aerosal sprays used in propellents or from refrigerators where they are used as coolants).
The ozone hole allows the UV radiations to pass through and reach us, increaing chances of skin cancer.
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